The sad thing is that all options won't work. Only one country can end this: China.

Agreed. Frankly, if China wasn't a player here, the USA would already have invaded North Korea. It is actually possible that North Korea could hit a United States protectorate like Guam with a nuclear weapon. People who are born in Guam are United States citizens by birth. The situation has reached intolerable proportions. Yet we can't lift a finger without China's concurrence. Unless and until a nuclear weapon gets fired in Guam's direction and actually explodes. From that moment on, China or no China, the USA will be in a shooting war with North Korea, which will last maybe a week, and only because the USA will be trying to minimize civilian casualties, which of course North Korea won't care about at all, despite the fact that those casualties will be North Koreans.